再看下之前的例子：

```Python hl_lines="6"
{!../../../docs_src/response_status_code/tutorial001.py!}
```

`201` 表示**已创建**的状态码。

但我们没有必要记住所有代码的含义。

可以使用 `fastapi.status` 中的快捷变量。

```Python hl_lines="1  6"
{!../../../docs_src/response_status_code/tutorial002.py!}
```

这只是一种快捷方式，具有相同的数字代码，但它可以使用编辑器的自动补全功能：

<img src="../../../../../../img/tutorial/response-status-code/image02.png">

!!! note "技术细节"

## 名前を覚えるための近道

先ほどの例をもう一度見てみましょう:

```Python hl_lines="6"
{!../../../docs_src/response_status_code/tutorial001.py!}
```

`201`は「作成完了」のためのステータスコードです。

しかし、それぞれのコードの意味を暗記する必要はありません。

`fastapi.status`の便利な変数を利用することができます。

```Python hl_lines="1 6"
{!../../../docs_src/response_status_code/tutorial002.py!}
```

それらは便利です。それらは同じ番号を保持しており、その方法ではエディタの自動補完を使用してそれらを見つけることができます。

    ]


client = TestClient(app)


def test_valid():
    response = client.get("/items/valid")
    response.raise_for_status()
    assert response.json() == {"name": "valid", "price": 1.0, "owner_ids": None}


def test_coerce():
    response = client.get("/items/coerce")
    response.raise_for_status()
    assert response.json() == {"name": "coerce", "price": 1.0, "owner_ids": None}


def test_validlist():

def test_valid_none_data():
    response = client.get("/items/validnone")
    data = response.json()
    assert response.status_code == 200
    assert data == {"name": "invalid", "price": 3.2, "owner_ids": None}


def test_valid_none_none():
    response = client.get("/items/validnone", params={"send_none": "true"})
    data = response.json()
    assert response.status_code == 200
    assert data is None

def test_coerce():
    response = client.get("/items/coerce")
    response.raise_for_status()
    assert response.json() == {
        "name": "coerce",
        "date": datetime(2021, 7, 26).isoformat(),
        "price": 1.0,
        "owner_ids": None,
    }


def test_validlist():
    response = client.get("/items/validlist")
    response.raise_for_status()
    assert response.json() == [
        {

```Python hl_lines="6"
{!../../../docs_src/response_status_code/tutorial001.py!}
```

`201` 👔 📟 "✍".

✋️ 👆 🚫 ✔️ ✍ ⚫️❔ 🔠 👉 📟 ⛓.

👆 💪 ⚙️ 🏪 🔢 ⚪️➡️ `fastapi.status`.

```Python hl_lines="1  6"
{!../../../docs_src/response_status_code/tutorial002.py!}
```

👫 🏪, 👫 🧑‍🤝‍🧑 🎏 🔢, ✋️ 👈 🌌 👆 💪 ⚙️ 👨‍🎨 📋 🔎 👫:

<img src="/img/tutorial/response-status-code/image02.png">

!!! note "📡 ℹ"

        def read_root():
            pass  # pragma: nocover


def test_invalid_response_model_in_responses_raises():
    with pytest.raises(FastAPIError):
        app = FastAPI()

        @app.get("/", responses={"500": {"model": NonPydanticModel}})
        def read_root():
            pass  # pragma: nocover


def test_invalid_response_model_sub_type_in_responses_raises():

    }


client = TestClient(app)


def test_valid():
    response = client.get("/items/valid")
    response.raise_for_status()
    assert response.json() == {"aliased_name": "valid", "price": 1.0, "owner_ids": None}


def test_coerce():
    response = client.get("/items/coerce")
    response.raise_for_status()
    assert response.json() == {
        "aliased_name": "coerce",
        "price": 1.0,

        response = client.get("/a")
    assert response.json() == {"msg": "Hello A"}
    assert response.headers["content-type"] == orjson_type


def test_router_a_override():
    with client:
        response = client.get("/a/override")
    assert response.content == b"Hello A"
    assert response.headers["content-type"] == text_type


def test_router_a_a():
    with client:
        response = client.get("/a/a")

Sie möchten aber dennoch in der Lage sein, die von Ihnen zurückgegebenen Daten mit einem `response_model` zu filtern und zu konvertieren.

In diesen Fällen können Sie einen `Response`-Parameter verwenden.

## Einen `Response`-Parameter verwenden

Sie können einen Parameter vom Typ `Response` in Ihrer *Pfadoperation-Funktion* deklarieren (wie Sie es auch für Cookies und Header tun können).